
#include "Sales_item.h"
//
// Created by zhu on 25-8-31.
//
int main() {
    Sales_item item;
    // 参考Sales_item(std::istream &is) { is >> *this; }
    // 参考std::istream& operator>>(std::istream& in, Sales_item& s)
    std::cin >> item;
    // 参考std::ostream& operator<<(std::ostream & out, const Sales_item & s)
    std::cout << item << std::endl;
}
